Tamper.



PATENTED SEPT. 13, 1 904.

J. EMBLETON.

TAMPER.

APPLICATION FILED APR. 29, 1904.

N0 MODEL.

INVENTOR da mes [ml/c1517 ATTOHNEY5 WITNESSES:

Patented September 13, 1904.

ATENT JAMES EMBLETON, OF COLUMBUS, OHIO.

TAIVIPER.

SPECIFICATION forming part of Letters Patent N0. 769,943, datedSeptember 13, 1904.

Application filed April 29, 1904.

To all whom, it may concern:

Be it known that 1, JAMES 'EMBLETON, a citizen of the United States,residing at Columbus, in the county of Franklin and State of Ohio, haveinvented a certain new and useful Improvement in Tampers, of which thefollowing is a specification.

My invention relates to new and useful improvements in tampers.

The object of the invention is to provide a tamper more especiallydesigned to be used in connection with the tamping of molded concretestructures which may be readily connected with a flexible shaft andexpeditiously manipulated over the surface treated.

Another feature of the invention resides in means for handling andsuspending the tamper whereby the same may be easily moved verticallyand laterally.

Finally, the object of the invention is to provide a device of the typeset forth that will be strong, durable, and eflicient, comparativelyinexpensive and simple to manufacture, and one in which the severalparts will not be liable to get out of working order.

With the above and other objects in view the invention consists of thenovel details of construction and operation, a preferable embodiment ofwhich is described in the specification and illustrated in the drawings,where- Figure 1 is a side elevation of the tamper and its suspendingapparatus. Fig. 2 is a front elevation of the same, and Fig. 3 is a topplan View of the tamper-foot.

In the drawings the numeral 1 designates the standard, which is formedat its lower end with an offset 2, from which depends the integralsleeve 3, having sufficient length to afford a hand-grip. A plunger 4 isreciprocatingly mounted in the sleeve 3 and is formed near its lower endwith a peripheral vertical groove 5. The plunger 4 is formed with abifurcated upper end 6, to which is pivotally connected, by means of thebolt7, alink 8,formed with a bear ing-collar 9 at its upper end. Thecollar 9 is pivotally held on the wrist-pin 10 by the nut 11 and bearsagainst the boss 12, formed around the base of the pin at its junctionwith the disk plate 13. The disk plate 13 is fixed Serial No. 205,524.(No modelon a stub-shaft 14, which is rotatably mounted in thebearing-boss 15, formed in the standard 1. The shaft 14 is provided withany suitable means whereby it may be readily connected with an ordinaryflexible shaft 16, through which rotary motion is transmitted to thedisk plate 13, which revolving at a high rate of speed reciprocates theplunger 4 by means of the pivoted link 8. A tamper-foot 17 of anysuitable form, having an upwardlyextending stem 18, provided with acentral recess 19, is removably secured on the lower end of the plunger4 by means of a screw 20, which loosely engages in the groove 5, so asto allow the stem a limited sliding movement upon the plunger. A coiledspring 21 is arranged in the lower portion of the recess and bearsagainst the end of the plunger 4, so as to normally hold the stem in itslowermost position. The purpose of this spring is to absorb all jar andany shock to which the foot might be subjected when coming in contactwith a stone or other hardened matter during the tamping action. On theupper end of the standard 1 1 form a handle 22, having an eye 23, bywhich it is suspended from a rope or the like 24, passing over suitablepulleys 25 and carrying at its opposite end a counterbalancing-weight26. It will thus be seen that the operator, grasping the handle 22 andthe sleeve 3, may easily raise or lower the tamper or swing the samefrom side to side, as the weight 26 will equalize the weight of thetamper, and thus reduce the labor to a minimum.

It will be readily discernible from the foregoing that a very simple andinexpensive device is provided and that such complicated devices asair-compressors or the like, which have been heretofore employed, areobviated.

I do not wish to limit myself to the exact details of construction andoperation set forth, as I may make various changes in the same withoutdeparting from the spirit of my in.- vention.

Having now fully described my invention, what I claim, and desire tosecure by Letters Patent, is

1. In a tamper, the combination with a re- IOO supported on the plunger,and a coiled spring IO engaged with the plunger for cushioning the foot,in combination with a flexible shaft for rotating the disk plate toreciprocate the plunger.

JAMES EMBLETON.

In presence of- C. C. SHEPHERD, W. L. MORROW.

